Abstract
As the dynamics of changes in phytohormones may be involved in photoperiodic regulation of the rates of growth and flowering, fluctuation of cytokinins was followed in long-day and short-day tobacco. Zeatin (Z) and zeatin riboside (ZR) were identified in leaves and roots using a GC-MSC system. In plants of the long-day tobaccoNicotiana silvestris increasing the number of long-day inductive for flowering (10, 20, 30, 40 LD) resulted in a rise in ZR activity. Half the plants reached a reproductive stage on the 40th day of induction. In short-day Mam moth tobacco plants, short-day floral induction (10, 20, 30, 40 SD) caused similar but less marked changes in ZR.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Aharoni, N., Richmond, A. E.: Endogenous gibberellin and abscisic acid content as related to senescence of detached lettuce leaves. -Plant Physiol.62: 224–229, 1978.
Chaïlakhyan, M. Kh., Lozhnikova, V. N.: [Effect of interruption of darkness by light and plant gibberellins.] In Russ.-Fiziol. Rast.13: 833–841, 1966.
Gordon, M. E., Letham, D. S., Parker, C. W.: The metabolism and translocation of zeatin in intact radish seedlings.-Ann. Bot.38: 809–825, 1974.
Grigoryeva, N. Y., Kucherov, V. F., Lozhnikova, V. N., Chaïlakhyan, M. Kh.: Endogenous gibberellins and gibberellin-like substances in long-day and short-day species of tobacco plants: a possible correlation with photoperiodic response.-Phytochemistry10: 509–517, 1971.
Hutton, M. J., Van Staden, J.: Transport and metabolism of 8(14C) zeatin applied to leaves ofCitrus sinensis. -Z. Pflanzenphysiol.111: 75–83, 1983.
Kivilaan, T., Zeevaart, J. A. D.: Endogenous gibberellins and growth in the long-day rosette plant spinach.-Plant Research, MSU/AEC73: 57–67, 1974.
Kochankov, V. G.: [Effect of the day length on level of abscisic-like inhibitor inRudbeckia plants.] In Russ.-Dokl. Akad. Nauk SSSR198: 959–962, 1971.
Kopcewicz, J., Centkowska, G., Kriesel, K., Zatorska, Z.: The effect of inductive photo-period on flower formation and phytohormones level in a long-day plantHyoscyamus ni-ger L. -Acta Soc. Bot. Pol.48: 255–265, 1979.
Krekule, J.: Hormonal control in reproductive growth. -Acta Univ. Nic. Copernici, Biol.18, 37: 9–18, 1976.
Leonard, M., Kinet, J. P.: Endogenous cytokinin and gibberellin levels in relation to in-florescence development in tomato. -Ann. Bot.50: 127–130, 1982.
Lercari, B., Michelli, P.: Photoperiodic regulation of cytokinin level in leaf blades ofAllium cepa L.-Plant Cell Physiol.22: 501–505, 1981.
Lord, E. M.: Physiological controls on the production of cleistogamous and chasmogamous flowers inLamium amplexicaule L.-Ann. Bot.44: 757–766, 1980.
Lozhnikova, V. N., Chaïlakhyan, M. Kh.: [Effect of interruption of darkness by light and plant inhibitors.] In Russ. -Dokl. Akad. Nauk SSSR222: 1242–1245, 1975.
Lozhnikova, V. N., Krekule, J., Seidlová, F., Bavrina, T. V., Chaïlakhyan, M. Kh.: [Effect of growth substances on flowering ofChenopodium rubrum on different photoperiodic induction.] In Russ. -Fiziol. Rast.24: 999–1003, 1982.
Mazin, V. V., Shaskova, L. J., Andbeev, E. J., Komiserk, E. I., Zloba, N. M., Kefeli, V. I.: [The specificity of kinetin effect on amaranthin formation inAmaranthus caudatus and on the growth cotyledon calluses inGlycine soja L.] In Russ. -Dokl. Akad. Nauk SSSR231: 21–24, 1976.
Negretskiï, V. A., Verenchikov, S. P., Lozhnikova, V. N.: [Identification of cytokinin from tobacco plants.] In Russ. -Agrokhimiya1984 (1): 89–91, 1984.
Negretskiï, V. A., Vekenchikov, S. P., Lozhnikova, V. N.: [Identification of cytokinin from tobacco plants by method of GC-MSC analyses.] In Russ.-Agrokhimiya, in press 1985.
Van Staden, J., Wabeing, P. F.: The effect of photoperiod on level of endogenous cytokinin inXanthium strumarium. -Physiol. Plant.273: 331–337, 1972.
Warding, P. F., Horgan, R., Henson, J. B., Davis, W.: Cytokinin relation in the whole plant. -In:Pilet, P. E. (ed.): Plant Growth Regulation. Pp. 323–332. Springer Verlag, Berlin-Hei-delberg-New York 1977.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Lozhnikova, V.N., Krekule, J., Dudko, N. et al. Fluctuation of endogenous cytokinins in leaves and roots of short-day and long-day tobacco associated with photoperiodic induction. Biol Plant 28, 43–46 (1986). https://doi.org/10.1007/BF02885319
Issue Date:
DOI: https://doi.org/10.1007/BF02885319